@inproceedings{5f785dbd5a8e459e9b499155cfd4af44,
title = "Multilateration method for locating GNSS spoofing attacks affecting substation clocks",
abstract = "Modern electricity substations are reliant on precision time synchronization for operation of protection and control systems. It is common for substations to be synchronized by means of Global Navigation Satellite System (GNSS) signals. This represents a cyber physical vulnerability to the electrical infrastructure in the form of jamming and spoofing attacks. In previous work, the authors describe a mechanism whereby multiple substation GNSS clocks can be used in tandem to identify a GNSS spoofing attack. This paper describes a method to identify the point of origin of a GNSS spoofing signal attacking an electricity substation using multilateration. A full derivation of the method is presented, and a worked example given. ",
keywords = "Cyber Physical Security, GNSS, GPS, Multilateration, PMU, Spoofing, Synchrophasor",
author = "Colin Kelsey and David Laverty and John O'Raw",
year = "2022",
month = jul,
day = "19",
doi = "10.1109/ISSC55427.2022.9826196",
language = "English",
isbn = "9781665452281",
series = "Irish Signals and Systems Conference: Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "Proceedings of the 33rd Irish Signals and Systems Conference, ISSC 2022",
address = "United States",
note = "33rd Irish Signals and Systems Conference, ISSC 2022 ; Conference date: 09-06-2022 Through 10-06-2022",
}